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https://www.readbyqxmd.com/read/28532136/correlation-of-preoperative-and-radical-prostatectomy-gleason-score-examining-the-predictors-of-upgrade-and-downgrade-results
#1
Gholamreza Pourmand, Shahram Gooran, Seyed Reza Hossieni, Fateme Guitynavard, Majid Safavi, Amirsina Sharifi, Ehsan Mokhtari
Preoperative Gleason score (GS) obtained from Trans Rectal Ultra Sonography (TRUS) is the most common grading system to evaluate the appropriate treatment for patients with clinically localized prostate cancer. But this method showed upgraded and downgraded results in comparison to Gleason score obtained from radical prostatectomy. The current study aimed to determine clinical or pathological variables to reduce the differences between biopsy and radical prostatectomy Gleason scores.Through retrospective review of 52 patients with radical prostatectomy, this study examined the correlations of preoperative Gleason score with age, prostate volume, PSA level, PSA density, digital rectal exam findings and percentage of positive core needle biopsies across two groups, including patients with preoperative GS≤6 (i...
April 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28531902/evaluation-of-prostate-imaging-reporting-and-data-system-classification-in-the-prediction-of-tumor-aggressiveness-in-targeted-magnetic-resonance-imaging-ultrasound-fusion-biopsy
#2
Angelika Borkowetz, Ivan Platzek, Marieta Toma, Theresa Renner, Roman Herout, Martin Baunacke, Michael Laniado, Gustavo B Baretton, Michael Froehner, Stefan Zastrow, Manfred P Wirth
OBJECTIVES: The study aimed to evaluate the prediction of Prostate Imaging Reporting and Data System (PI-RADS) with respect to the prostate cancer (PCa) detection rate and tumor aggressiveness in magnetic resonance imaging (MRI)/ultrasound-fusion-biopsy (fusPbx) and in systematic biopsy (sysPbx). MATERIALS AND METHODS: Six hundred and twenty five patients undergoing multiparametric MRI were investigated. MRI findings were classified using PI-RADS v1 or v2. All patients underwent fusPbx combined with sysPbx (comPbx)...
May 23, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28531799/numb-had-anti-tumor-effects-in-prostatic-cancer
#3
Ji Sun, Kai Wang, Jingfei Teng, Yufu Yu, Runmiao Hua, Haiyong Zhou, Dachuan Zhong, Yi Fan
AIM: The aim of this study was to explain the Numb anti-cancer effects in the prostatic cancer. METHODS: Collecting the 20 prostatic cancer patients and analyzing the correlation between Numb and Glease score. Transfection Numb into DU-145 and PC-3 cells, measuring the proliferation rate of difference groups by MTT assay, evaluating the cell apoptosis and cell cycle of difference group by Flow cytometry; measuring the invasion and migration abilities by transwell and wound healing assays...
May 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28531567/impact-of-body-composition-parameters-on-clinical-outcomes-in-patients-with-metastatic-castrate-resistant-prostate-cancer-treated-with-docetaxel
#4
Samantha J Cushen, Derek G Power, Kevin P Murphy, Ray McDermott, Brendan T Griffin, Marvin Lim, Louise Daly, Peter MacEneaney, Kathleen O' Sullivan, Carla M Prado, Aoife M Ryan
BACKGROUND: Body composition may influence clinical outcomes of certain chemotherapeutic agents. We examined the prognostic significance of skeletal muscle mass and adipose tissue on docetaxel toxicity and overall survival in patients with metastatic castrate resistant prostate cancer (mCRPC). METHODS: A retrospective review of patients medical records with mCRPC, treated with docetaxel was conducted. Body composition parameters (skeletal muscle mass, muscle attenuation [MA], visceral and subcutaneous adipose tissue) were measured at L3 by computed tomography (CT) and defined using previously established cut points...
June 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531357/prostate-specific-antigen-decline-pattern-in-advanced-prostate-cancer-receiving-androgen-deprivation-therapy-and-relationship-with-prostate-specific-antigen-progression
#5
Erdem Akbay, Murat Bozlu, Selahittin Çayan, Pelin Özcan Kara, Mesut Tek, Cuma Aytekin
INTRODUCTION: The aim of this study is to evaluate prostate-specific antigen decline pattern including prostate-specific antigen kinetics following androgen deprivation therapy on prostate-specific antigen progression in the patients with advanced prostate cancer. MATERIALS AND METHODS: Ninety-seven advanced prostate cancer patients receiving maximum androgen deprivation therapy were enrolled in case-control study. Baseline prostate-specific antigen, Gleason Score, bone metastase, nadir prostate-specific antigen, time to nadir prostate-specific antigen, declining slope to nadir prostate-specific antigen, estimated baseline prostate-specific antigen half-time, current prostate-specific antigen, post-nadir prostate-specific antigen time, estimated prostate-specific antigen, estimated decline of baseline prostate-specific antigen as quantitative, and ratio were recorded and calculated...
May 20, 2017: Aging Male: the Official Journal of the International Society for the Study of the Aging Male
https://www.readbyqxmd.com/read/28531226/intercenter-validation-of-a-knowledge-based-model-for-automated-planning-of-volumetric-modulated-arc-therapy-for-prostate-cancer-the-experience-of-the-german-rapidplan-consortium
#6
Carolin Schubert, Oliver Waletzko, Christian Weiss, Dirk Voelzke, Sevda Toperim, Arnd Roeser, Silvia Puccini, Marc Piroth, Christian Mehrens, Jan-Dirk Kueter, Kirsten Hierholz, Karsten Gerull, Antonella Fogliata, Andreas Block, Luca Cozzi
PURPOSE: To evaluate the performance of a model-based optimisation process for volumetric modulated arc therapy applied to prostate cancer in a multicentric cooperative group. The RapidPlan (RP) knowledge-based engine was tested for the planning of Volumetric modulated arc therapy with RapidArc on prostate cancer patients. The study was conducted in the frame of the German RapidPlan Consortium (GRC). METHODS AND MATERIALS: 43 patients from one institute of the GRC were used to build and train a RP model...
2017: PloS One
https://www.readbyqxmd.com/read/28531102/nanoparticles-as-theranostic-vehicles-in-experimental-and-clinical-applications-focus-on-prostate-and-breast-cancer
#7
REVIEW
Jörgen Elgqvist
Prostate and breast cancer are the second most and most commonly diagnosed cancer in men and women worldwide, respectively. The American Cancer Society estimates that during 2016 in the USA around 430,000 individuals were diagnosed with one of these two types of cancers, and approximately 15% of them will die from the disease. In Europe, the rate of incidences and deaths are similar to those in the USA. Several different more or less successful diagnostic and therapeutic approaches have been developed and evaluated in order to tackle this issue and thereby decrease the death rates...
May 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28530711/a-combinatorial-screen-of-the-cloud-uncovers-a-synergy-targeting-the-androgen-receptor
#8
Marco P Licciardello, Anna Ringler, Patrick Markt, Freya Klepsch, Charles-Hugues Lardeau, Sara Sdelci, Erika Schirghuber, André C Müller, Michael Caldera, Anja Wagner, Rebecca Herzog, Thomas Penz, Michael Schuster, Bernd Boidol, Gerhard Dürnberger, Yasin Folkvaljon, Pär Stattin, Vladimir Ivanov, Jacques Colinge, Christoph Bock, Klaus Kratochwill, Jörg Menche, Keiryn L Bennett, Stefan Kubicek
Approved drugs are invaluable tools to study biochemical pathways, and further characterization of these compounds may lead to repurposing of single drugs or combinations. Here we describe a collection of 308 small molecules representing the diversity of structures and molecular targets of all FDA-approved chemical entities. The CeMM Library of Unique Drugs (CLOUD) covers prodrugs and active forms at pharmacologically relevant concentrations and is ideally suited for combinatorial studies. We screened pairwise combinations of CLOUD drugs for impairment of cancer cell viability and discovered a synergistic interaction between flutamide and phenprocoumon (PPC)...
May 22, 2017: Nature Chemical Biology
https://www.readbyqxmd.com/read/28530704/upregulation-of-cyp17a1-by-sp1-mediated-dna-demethylation-confers-temozolomide-resistance-through-dhea-mediated-protection-in-glioma
#9
J-Y Chuang, W-L Lo, C-Y Ko, S-Y Chou, R-M Chen, K-Y Chang, J-J Hung, W-C Su, W-C Chang, T-I Hsu
Steroidogenesis-mediated production of neurosteroids is important for brain homeostasis. Cytochrome P450 17A1 (CYP17A1), which converts pregnenolone to dehydroepiandrosterone (DHEA) in endocrine organs and the brain, is required for prostate cancer progression and acquired chemotherapeutic resistance. However, whether CYP17A1-mediated DHEA synthesis is involved in brain tumor malignancy, especially in glioma, the most prevalent brain tumor, is unknown. To investigate the role of CYP17A1 in glioma, we determined that CYP17A1 expression is significantly increased in gliomas, which secrete more DHEA than normal astrocytes...
May 22, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28530220/presence-of-invasive-cribriform-or-intraductal-growth-at-biopsy-outperforms-percentage-grade-4-in-predicting-outcome-of-gleason-score-3-4-7-prostate-cancer
#10
Charlotte F Kweldam, Intan P Kümmerlin, Daan Nieboer, Ewout W Steyerberg, Chris H Bangma, Luca Incrocci, Theodorus H van der Kwast, Monique J Roobol, Geert J van Leenders
Relative increase of grade 4 and presence of invasive cribriform and/or intraductal carcinoma have individually been associated with adverse outcome of Gleason score 7 (GS 7) prostate cancer. The objective of this study was to investigate the relation of Gleason grade 4 tumor percentage (%GG4) and invasive cribriform and/or intraductal carcinoma in GS 3+4=7 prostate cancer biopsies. We reviewed 1031 prostate cancer biopsies from the European Randomized Study of Screening for Prostate Cancer. In total 370 men had G3+4=7...
May 19, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28529909/molecular-heterogeneity-of-localized-prostate-cancer-more-different-than-alike
#11
Jeffrey J Tosoian, Emmanuel S Antonarakis
No abstract text is available yet for this article.
February 2017: Translational Cancer Research
https://www.readbyqxmd.com/read/28529650/diagnostic-accuracy-of-ga-68-hbed-cc-psma-ligand-pet-ct-before-salvage-lymph-node-dissection-for-recurrent-prostate-cancer
#12
Cordula A Jilg, Vanessa Drendel, H Christian Rischke, Teresa Beck, Werner Vach, Kathrin Schaal, Ulrich Wetterauer, Wolfgang Schultze-Seemann, Philipp T Meyer
Background: By targeting the prostate-specific membrane antigen (PSMA) on prostate cancer (PCa) cells PSMA-PET/CT shows great potential in locating the site of biochemical recurrence even at low PSA (Prostate-specific antigen)-levels. Accurate imaging of PCa recurrent lymph node metastases (LNM) is crucial for metastases directed therapies such as salvage-lymph node dissection (salvage-LND). Objective: To evaluate the diagnostic accuracy of PSMA-PET/CT for detection of affected lymph-node regions at salvage-LND for nodal recurrence of PCa...
2017: Theranostics
https://www.readbyqxmd.com/read/28529626/cancer-derived-circulating-micrornas-promote-tumor-angiogenesis-by-entering-dendritic-cells-to-degrade-highly-complementary-micrornas
#13
Jiaqi Wang, Huamao Ye, Dandan Zhang, Kai Cheng, Yijun Hu, Xiya Yu, Lei Lu, Jingjing Hu, Changjing Zuo, Baohua Qian, Yongwei Yu, Shupeng Liu, Geng Liu, Chuanbin Mao, Shanrong Liu
Understanding the interaction between cancer cells and immunocytes will inspire new cancer therapy strategies. However, how cancer-derived circulating miRNAs modulate such interaction remains unclear. Here we discovered that circulating miR-410-5p, secreted by prostate cancer cells, entered dendritic cells (DCs), with the aid of argonaute-2 protein. The cancer cell antigens stimulated the DCs to produce miR-410-3p, a highly complementary counterpart of miR-410-5p derived from pre-miR-410. The DC-internalized miR-410-5p degraded the miR-410-3p by base pairing and thus inhibited its function in suppressing tumor angiogenesis, promoting tumor growth...
2017: Theranostics
https://www.readbyqxmd.com/read/28529589/tetrandrine-triggers-an-alternative-autophagy-in-du145-cells
#14
Wei Qiu, Ai-Li Zhang, Ye Tian
Tetrandrine (Tet), a potent lysosomal inhibitor, blocks autophagic flux and induces cancer cell death. Previously, the present authors identified the prostate cancer cell line DU145 to exhibit high sensitivity towards Tet in 11 cancer cell lines. In the present study, autophagy in Tet-treated DU145 cells was investigated. Similar to other cell lines, such as PC-3 and 786-O cells, Tet neutralized the acidity of lysosome and blocked autophagy in DU145 cells. However, Tet failed to induce microtubule-associated protein 1 light chain 3 (LC3) conversion in DU145 cells...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28529582/angiotensin-ii-receptor-blockers-induce-autophagy-in-prostate-cancer-cells
#15
Yunseo Woo, Yu-Jin Jung
Angiotensin II receptor blockers (ARBs) are anti-hypertensive drugs that competitively inhibit the binding of angiotensin II to its receptor, resulting in blood vessel dilation and the reduction of blood pressure. These antagonists are also known as sartans, and are a group of pharmaceuticals that possess tetrazole or imidazole groups. In the present study, the anticancer and antimetastatic effects of the ARBs fimasartan, losartan, eprosartan and valsartan on the human prostate cancer PC-3, DU-145 and LNCap-LN3 cell lines were investigated in vitro...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28529549/abiraterone-acetate-and-prednisone-in-chemotherapy-na%C3%A3-ve-prostate-cancer-patients-rationale-evidence-and-clinical-utility
#16
REVIEW
E David Crawford, Neal D Shore, Daniel P Petrylak, Celestia S Higano, Charles J Ryan
Abiraterone acetate 1000 mg/day, combined with prednisone 5 mg PO twice daily, is indicated for the treatment of metastatic castration-resistant prostate cancer (mCRPC). Abiraterone acetate is the oral prodrug of abiraterone, a specific CYP17 inhibitor that blocks androgen biosynthesis within the adrenal glands, testes and tumor microenvironment. In a phase III trial of men with asymptomatic or minimally symptomatic, chemotherapy-naïve mCRPC, treatment with oral abiraterone acetate plus prednisone led to a statistically significant improvement in the co-primary endpoints of overall survival and radiographic progression-free survival when compared with placebo plus prednisone...
May 2017: Therapeutic Advances in Medical Oncology
https://www.readbyqxmd.com/read/28529548/docetaxel-in-prostate-cancer-a-familiar-face-as-the-new-standard-in-a-hormone-sensitive-setting
#17
REVIEW
Javier Puente, Enrique Grande, Ana Medina, Pablo Maroto, Nuria Lainez, Jose Angel Arranz
The increasing knowledge of prostate cancer is leading to many questions about its natural history and to reconsider conventional therapeutic strategies. Androgen ablation therapy has been the standard therapy in the advanced setting. Although docetaxel has demonstrated increased survival in patients with metastatic prostate cancer who had progressed to hormone treatments, due to its potential toxicity the role of chemotherapy has been relegated to patients who were symptomatic or who had high tumor burden...
May 2017: Therapeutic Advances in Medical Oncology
https://www.readbyqxmd.com/read/28529342/circulating-tumor-cells-and-serum-levels-of-mmp-2-mmp-9-and-vegf-as-markers-of-the-metastatic-process-in-patients-with-high-risk-of-metastatic-progression
#18
Marketa Skerenova, Veronika Mikulova, Otakar Capoun, Tomas Zima, Petra Tesarova
BACKGROUND AND AIMS: Metastases are a severe complication in cancer patients and biomarkers predicting their progression are still lacking for specific groups of patients. HER2 positive breast cancer (HER2 BC) patients on trastuzumab therapy are at risk of the development of unpredictable and often fatal central nervous system (CNS) metastases and castration resistant prostate cancer (CRPC) patients urgently need a marker of disease progression during therapy. Proposed metastatic markers: circulating tumor cells (CTC), serum levels of matrix metalloproteinase 2 (MMP-2), 9 (MMP-9) and vascular endothelial growth factor (VEGF) were prospectively studied to confirm their utility in these two narrowly defined groups of cancer patients...
May 16, 2017: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/28529258/2-diagnosis-of-the-prostatic-cancer-judged-from-a-psa-check
#19
Emi Sato
No abstract text is available yet for this article.
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28529067/immunoproapoptotic-molecule-scfv-fdt-tbid-modified-mesenchymal-stem-cells-for-prostate-cancer-dual-targeted-therapy
#20
Fengqi Yan, Xia Li, Nan Li, Rui Zhang, Qinhao Wang, Yi Ru, Xiaoke Hao, Jianxin Ni, He Wang, Guojun Wu
Highly efficient target therapy is urgently needed for prostate cancer with overexpression of γ-seminoprotein (γ-SM). Recent studies indicated that mesenchymal stem cells (MSCs) are attractive candidate for cell-based, targeted therapy due to their tumor tropism. Here we designed a dual-target therapeutic system in which MSCs were engineered to produce and deliver scFv-Fdt-tBid, a novel γ-SM-targeted immunoproapoptotic molecule. Such engineered MSCs (MSC.scFv-Fdt-tBid) would home to tumor sites and release the fusion protein to induce the apoptosis of prostate cancer cells...
May 18, 2017: Cancer Letters
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